Setting Up A Digital Audio Connection; Controlling Other Devices Through Cec - LG 55LF5700 User Manual

Setting up a digital audio connection

You can connect your TV to an external amplifier, receiver, or sound bar by using either of these two connections:
• HDMI ARC—The HDMI Audio Return Channel enables your TV to output digital audio on one of its HDMI
connectors. The connected amplifier can also function simultaneously as an input source to your TV, if needed.
To use the ARC capability, you must connect an HDMI cable from your amplifier's HDMI ARC connector to the
HDMI1 (ARC) connector on your TV. You also must:
• Be sure your HDMI cable is certified by HDMI.
• Select the appropriate setting under Settings > Audio >Audio mode, as explained in
on page 61.
• Enable HDMI ARC under Settings > System > CEC, as explained in
• OPTICAL DIGITAL AUDIO OUT—Your TV has an OPTICAL DIGITAL AUDIO OUT connector that outputs a digital
audio signal. To use the optical output, connect a digital optical audio cable from the amplifier to the OPTICAL
DIGITAL AUDIO OUT connector on your TV. You also must:
• Select the appropriate setting under Settings > Audio >Audio mode, as explained in
on page 61.
Note
Dolby Digital Plus format is only output through the HDMI ARC connection.
After making the required HDMI ARC or digital optical audio connection, go to Settings > Audio > S/PDIF and ARC
option and select the audio format to use.
Note
In most cases, Auto detect is the best option. Other settings can result in no sound
when the content you are viewing does not contain the audio stream type you
selected.

Controlling other devices through CEC

Consumer Electronics Control (CEC) enables your TV and other CEC-compatible home entertainment components to
control one other in various ways. First, the CEC-compatible devices must "discover" one another and report their
capabilities. After this, one device can control another according to the features you enable. For example, playing a disc
on a Blu-ray player could switch your TV to the Blu-ray player's input. Or, powering off your TV could also power off the
Blu-ray player and the home theater receiver.
Discovering connected CEC devices
To discover CEC devices:
1 Make sure that your CEC-compatible components are connected to your TV with a suitable high-speed HDMI cable
that supports HDMI ARC and CEC control.
2 Turn on each component and make sure all components have CEC enabled.
Tip
Some manufacturers have their own branded names for CEC functionality, so you
might need to read the product documentation to correctly identify the CEC features
of the device.
3 On your TV's Home screen menu, navigate to Settings > Control other devices (CEC) > Search for CEC devices,
and then press OK to start the discovery process.
When finished, your TV displays a list of CEC devices that are connected to each HDMI input, as well as any devices that
had previously been connected. Your TV remembers the names of multiple CEC devices even when they are no longer
connected. If the list is longer than the allowed space, press
Enabling HDMI ARC
HDMI1 (ARC) is the audio return channel that is available on one of your TV's HDMI ports. The audio return channel
enables you to send a Dolby Digital audio signal back to a home theater receiver that is also sending an audio and video
signal into your TV. Using HDMI ARC reduces the number of cables needed and optionally lets you control the volume
and mute state of the receiver by enabling system audio control.
HDMI ARC is disabled by default. To enable HDMI ARC, in the Home screen menu, navigate to Settings > Control other
devices (CEC), and then highlight HDMI ARC. Press OK to check the adjacent check box.
62
55"/65" 1080p, 60Hz, LG TV powered by Roku TV
Enabling HDMI ARC
to see a complete list in a scrollable window.
www.lg.com/us
Changing the audio mode
on page 62.
Changing the audio mode